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Factors influencing estimated effectiveness of COVID-19 vaccines in non-randomised studies
Non-randomised studies assessing COVID-19 vaccine effectiveness need to consider multiple factors that may generate spurious estimates due to bias or genuinely modify effectiveness. These include pre-existing immunity, vaccination misclassification, exposure differences, testing, disease risk factor...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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BMJ Publishing Group
2022
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9691814/ https://www.ncbi.nlm.nih.gov/pubmed/35338091 http://dx.doi.org/10.1136/bmjebm-2021-111901 |